65138125

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{8017}}^1$

素因数の和:8050

約数の個数: 20

約数和(自身を含む): 87668812

約数和(自身を除く): 22530687

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 8017, 8125, 40085, 104221, 200425, 521105, 1002125, 2605525, 5010625, 13027625, 65138125]

約数ペア:

[(1, 65138125), (5, 13027625), (13, 5010625), (25, 2605525), (65, 1002125), (125, 521105), (325, 200425), (625, 104221), (1625, 40085), (8017, 8125)]